﻿namespace Homework03
{
    internal class Homework03
    {/// <summary>
    /// 显示一个30秒倒计时
    /// </summary>
        static void Main()
        {//显示
            Console.WriteLine("倒计时开始：");
            for (int i = 30; i >= 0; i--)
            {//运行指令
                Console.Write($"{i}");
                Thread.Sleep(1000);
            }
            Console.WriteLine("时间到");


        }
    }
}